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- The BAM transaction is the core data structure which will be used for all the data transfers in QPIC NAND. Since the core framework in nand_base.c is serializing all the NAND requests so allocating BAM transaction before every transfer will be overhead. The memory for it be allocated during probe time and before every transfer, it will be cleared. - The BAM transaction contains the array of command and data scatter gather list and indexes. For every transfer, all the resource will be taken from BAM transaction. - The size of the buffer used for BAM transactions is calculated based on the NAND device with the maximum page size, among all the devices connected to the controller. Reviewed-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Abhishek Sahu <absahu@codeaurora.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.